Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The strain energy of the spring when it is subjected to the greatest load which the spring can carry without suffering permanent distortion is known as
a. Proof strain energy
b. Proof load stress
c. Proof resilience
d. Proof stress
e. Limiting stress
Q. The deformation of any structure takes place in such a manner that the work of deformation is a minimum. This is known as
a. Principle of least work
b. Law of minimum energy
c. Law of conservation of energy
d. Principle of failure of structure
e. None of the above
Q. A cantilever beam rectangular in cross-section is subbjected to a load W at its free end. If the depth of the beam is doubled and the load is halved, the deflection of the free end as compared to original deflection will be
a. Double
b. One-sixteenth
c. Eight times
d. One eight
e. Half
Q. The neutral axis of a simply supported beam is
a. Where fibres are subjected to maximum compression
b. Where fibres do not undergo strain
c. Where fibres are subjected to maximum bending stress
d. When fibres are subjected to minimum bending stress
e. Where fibres undergo maximum strain
Q. The point of contraflexure occurs in
a. All types of beams
b. Continuous beam only
c. Simply supported beams only
d. Cantilever beams only
e. Overhanging beams only
Q. In case of thin cylindrical shell with hemispherical ends
a. The thickness of cylindrical is more than that of spherical ends
b. The thickness of cylinderical shell is less than that of spherical ends
c. The thickness of cylindrical is same as that of spherical ends
d. The thickness of cylindrical shell is double of the thickness of spherical shell
e. None of the above
Q. The amount of resilience is equal to
a. The work required to deform the body zero stress to stress within elastic limit
b. Elastic energy stored in unit area of material
c. Equal to the area of the stress deformation diagram
d. None of the above
e. None of the above
Q. A strip of steel 75 mm wide 40 mm thick is bent round a circular drum of 4.96 m outside diameter. If E = 2 x 105 N/mm2, the maximum stress due to bending will be
a. 1600 N/mm2
b. 1200 N/mm2
c. 800 N/mm2
d. 400 N/mm2
e. None of the above
Q. A pressure vessel is said to be thin walled when the ratio of internal diameter of the vessel and wall thickness is
a. More than 20
b. 5
c. There is no such relationship
d. 15
e. 10
Q. For a beam of uniform strength if its depth is maintained constant, then its width will vary in proportion to
a. Bending Moment, BM
b. (BM)2
c. (BM)
d. (BM)3
e. None of the above
Q. Force required to punch a 15 mm hole in a mild steel pipe 5 mm thick, when ultimate shear stress of the plate is 500 N/mm2, will be nearly
a. 78 kN
b. 98 kN
c. 118 kN
d. 158 kN
e. None of the above
Q. A cantilever beam of length 5 m carries a uniformly distributed load of 100 Newtons/m throughout its length. The maximum shearing force in the beam will be
a. 100 N
b. 250 N
c. 500 N
d. 1250 N
e. None of the above
Q. The limit within which Hooke's law holds good is known as
a. Elastic limit
b. Plastic limit
c. Yield point
d. Eulers limit
e. None of the above